Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before...
Vulnerability Description
Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds what is specified by the tile dimensions.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/95170
- https://github.com/LibVNC/libvncserver/pull/137
- http://www.debian.org/security/2017/dsa-3753
- https://security.gentoo.org/glsa/201702-24
- https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://usn.ubuntu.com/4587-1/
More from libvncserver project
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libvncserver project
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.